Home / 395,247.15-545,442.39-213,959.07

Finding the Fourth Proportional to 395,247.15, 545,442.39 and 213,959.07

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Solution

The fourth proportional to 395,247.15, 545,442.39 and 213,959.07 is: 295,264.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,247.15 : 545,442.39 = 213,959.07 : x
  2. Step 2: Convert to fraction form
    395,247.15/545,442.39 = 213,959.07/x
  3. Step 3: Cross multiply
    395,247.15x = 545,442.39 × 213,959.07
  4. Step 4: Simplify right side
    395,247.15x = 116,702,346,502.98
  5. Step 5: Solve for x
    x = 116,702,346,502.98/395,247.15
  6. Step 6: Final answer
    x = 295,264.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.